diff --git a/docs/source_code/Response.md b/docs/source_code/Response.md
index 601dac1c..d769a484 100644
--- a/docs/source_code/Response.md
+++ b/docs/source_code/Response.md
@@ -89,15 +89,31 @@ def re_first(self, regex, default=None, replace_entities=False):
 response.re("<a.*?href='(.*?)'")
 ```
 
-### 6. 定位混用
+### 6. 支持BeautifulSoup
 
-三种定位方式可混用，如：
+默认的features为`html.parser`
+
+```python
+def bs4(self, features="html.parser"):
+    pass
+```
+
+例如获取标题：
+
+```python
+response.bs4().title
+```
+
+
+### 7. 定位混用
+
+xpath、css两种定位方式可混用，如：
 
 ```
 response.css("a").xpath("./@href").extract()
 ```
 
-### 7. 取文本
+### 8. 取文本
 
 取文本有两种方式
 
@@ -115,13 +131,13 @@ response.extract()
 
 如：网页源码`<a class='page-numbers'...`  会被处理成`<a class="page-numbers"`
 
-### 8. 取json
+### 9. 取json
 
 ```
 response.json
 ```
 
-### 9. 查看下载内容
+### 10. 查看下载内容
 
 ```
 response.open()
@@ -129,13 +145,13 @@ response.open()
 
 这个函数会打开浏览器，渲染下载内容，方便查看下载内容是否与数据源一致
 
-### 10. 将普通response转为feapder.Response
+### 11. 将普通response转为feapder.Response
 
 ```
 response = feapder.Response(response)
 ```
 
-### 11. 序列化与反序列化
+### 12. 序列化与反序列化
 
 序列化 
 
@@ -181,7 +197,7 @@ feapder.Response写法如下
 ```
 response.code="utf-8"
 ```
-做了简化
+做了简化，不过`response.enconding`也支持
 
 ### 3. 解码方式(二进制转字符串方式)
 
diff --git a/feapder/network/response.py b/feapder/network/response.py
index 9cee92fe..44cd15dc 100644
--- a/feapder/network/response.py
+++ b/feapder/network/response.py
@@ -275,9 +275,8 @@ def selector(self):
             self._cached_selector = Selector(self.text)
         return self._cached_selector
 
-    @property
-    def bs4(self):
-        soup = BeautifulSoup(self.text, "html.parser")
+    def bs4(self, features="html.parser"):
+        soup = BeautifulSoup(self.text, features)
         return soup
 
     def extract(self):
diff --git a/tests/air-spider/test_air_spider.py b/tests/air-spider/test_air_spider.py
index 21b68ebc..02690f85 100644
--- a/tests/air-spider/test_air_spider.py
+++ b/tests/air-spider/test_air_spider.py
@@ -26,7 +26,7 @@ def download_midware(self, request):
         return request
 
     def parse(self, request, response):
-        print(response.bs4.title)
+        print(response.bs4().title)
         print(response.xpath("//title").extract_first())